Issue about arbitrary input exposure

[h4nwei]

Hi @rajat95 @KRamPrabhakar

I use the tied network with the corresponding parameter to test a five exposure sequence (kindly refer to the BabyOnGrass scene in Sen's paper：https://web.ece.ucsb.edu/~psen/hdr_stuff/Scenes.zip). However, the result is prone to ghosting artifacts, as shown in the blow.

Thus，I am confused whether our mistaken reproduction caused this problem since the code of an arbitrary number of inputs is not available. If the result has any questions, please let me know.

If possible, could you provide the testing code, which accepts arbitrary exposures, or the results (.hdr) on Sen's dataset (https://web.ece.ucsb.edu/~psen/hdr_stuff/Scenes.zip)?

It is really appreciated any help you can provide.

Best, Hanwei